I am trying to pick the memory for E6700 and ASUS P5B-E. I am puzzled as what various names, markings, etc. mean. Someone was trying to sell me the memory running at 1066MHz, isn't it a little overkill? (albeit E6700 running at 1066 FSB, do I really need it ?- yes, this is were I am missing something) I do need 2Gb, something stable, andI will not overclock. I will eventually go to 4Gb or even past (planning to run XP 64bit).
Someone was trying to sell me the memory running at 1066MHz, isn't it a little overkill?
Yes, running at DDR2-533 in dual-channel mode (which doubles throughput) gives you the same 1066MHz effective data rate as your CPU FSB. I would avoid spending my money with someone like that who either is trying to rip you off or doesn't know any better. Latency (see posts recommended above) is more important for C2D CPUs than the Pentium D predecessors, so I would buy the cheapest good-quality RAM that I could run at DDR2-533 CL3 speed. Remember, you can always run faster RAM at a slower speed, so DDR2-800 CL4-rated RAM will run at DDR2-600 speed at CL3 (or DDR2-400 speed at CL2). If you do buy DDR2-800 RAM, go ahead and run it at DDR2-800 speed, as you will gain a few percent in performance over DDR2-533 speed (this is not generally true for DDR2-667 RAM in C2D systems).